Crushing-machine.



A. G. J. RAPP.

CRUSHING MACHINE.-

APPLICATION HLED MAR. 29, I915. 1,135,937, Patented June 6,1916.

2 SHEETS-SHEET l.

A. G. J. RAPP.

CRUSHING MACHINE.

APPLICATION FILED MAR.29, l9l5 Patented June 6,1916.

' 2 SHEETS-SHEET 2- ing the machine.

' to prevent cloggingyof STATES r irEnToFFIoE.

AXEIJ e. .1}. Rare. 0: 'cnrcaeo; rumors, ASSIGNOR 'ro'LniK-BELr contrar or" r cmcmqrnnmors, A coaroaarron orrrmirors. 1

and wherein the crushing is accomplished by teeth or-knobs on the roll and, wherein the materiali's drawn down into the aper ture between the. concaves'fand the roll'by a seriesof projecting spikes or teeth." One obj ect' of ing these teeth or 'spik'e s without dismount- Another object is" feeding the material to these teeth; or" spike's the machine.) .Othergobje'cts, of my invention will appearin the specification. T 5 7 My i'n'vention' is,-; therefore, illustratedmore or less diagra ti a h -Ja p mi 'Panyingdmwings; hereimi Figure-1 is a side elevation of-aQcrushing machine; Fig. 2 is a detail section-"through I p even lto a-crushing zone; Fig. 3 is a section on an enlarged scale through the crushing drum showing'the means for removably attaching one of the 'te th; Fig. 4 is a detail plan view on an enlarged scale of one of the tooth or.

cutter holding levers; Fig. 5 is a perspective of the surface of one of the concaves; Fi 6 is a section on Fig. 5; and Fig.:7 is a etail section through the crushing concave along the line parallel; with the-iaxis of rotation of the drum. v 'Like' parts are indicated by like letters throughout the several figures. I y

A is a main frame, A a hopper carried thereby; A a concave. I is held in position in the mainframe bythe shafts A 'A.

A is the crushing drum mounted on and rotating with the shaft A which is rotatably mounted on the frame A.

A is a driving pulley connected to the,

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Specification otLettersBatent. Application filed March 2e,-

- shaft A hyl'any suitflble id wig w my' invention is to provide means for. easily and conveniently -renew--* to provide ,means for "slidabl'y 'tured toengage the shown they drum by the *sprlng 1 surface of iean znot and [l Qa fedQidown ,to increase} the available forceffor rotating the "drum.v 'A j 1s a holding lin'k pressed".yieldingly-toward? a nda'e i 1: at 1ts rear end the shaft A? so th'atithelower edge 2 ofv the concave is pressed-yieldingly j p mantles or B adapte'd to assist They are arthe mantle. Intermediate themfare -locateda, series of tearing and -feeding pinsrkfiQethi? 115 -1- These cutters p? tgqtihipmv 7 W33 'y beyond *the Pe.

" nd abeve the knobs such 1 serrate su d imovem n of he d"'ust ing' jscrew screw ce i-ofthe concave-j I 1. g wedge and threaded in the su and lenga'ges the tail function of the'wedgeis to make the device lever which I "of the lever or flog C to; rotate: it inr a "counter-clockwise Idirec; tion and 1am the wedge'against, the'pin'or universal nfits action so that different sizes.

of"teeth,' levers andpockets may cooperate without interfering with the operation of the device. It maybe as thickor as thin as necessary to enable, a strong bite to be taken on the tooth thickness it compensates for all inaccuracies of-the otherparts. hasa sharp {point and this radually wears down in operation andinay e renewed and sharpenedin the usual manner. I

The concave as shown in Figs. 5', 6 and 7 the other i and' by this varying The booth.

is made up of a series of separate irregular curved surfaces. These surfaces it Wlll be observed are tilted and the bounding lines converge as indicated so that they tend to feed or discharge the material to be crushed centrally from both sides toward parallel lines. The arrangement of the device is such that these parallel lines toward which the material is feel are the lines along which the teeth are located. The result is that the objects or particles fed into the machine as they pass down toward the crushing point.

are fed across the concaves toward the lines of action of the grabbing or feeding teeth. This efiect may be obtained by any suitable arrangement of the surface of the concave.

By my arrangement I insure that this cross feed will be taking place at all. points and that most if not all of the material will be fed downwardly and inwardly toward the line of action of the feeding teeth before the concave zone is reached.

It will be evident that while I have shown in my drawings anoperative device still many changes might be made both in size,

shape and arrangement of parts without departing materially from the spirit of my invention, and I wish, therefore, that my drawings be regarded as in a sense dia grammatic. v p

The use and operation of my invention are as follows ;-My device is, generally speaking, intended for the crushing of lumpy m'ateriah The knobs or teeth cast integral with the mantle will last almost in definitely. When they finally wear out the mantle may be cast aside. The wear on the long teeth is hard and it is desirable to sharpen or remove them as the case may a lever and means for rotating it and holding it in position.

3. The combination with a supporting base member of a-tooth bar having serrated sides and a tooth integral therewith, a

pocket inside the base member partially cpntaining the bar, and having a serrated wall and means for clamping the serrated portion of the tooth barinto engagement with the serrated pocket'wall, said means comprising a lever and means for rotating it and holding' it in position, and a wedge interposed between the bar and the lever.

4. The combination with a supporting base member of a tooth bar having serrated sides and a tooth integral therewith, a pocket inside the base member partially containing the bar, and having a serrated wall and means for clamping the serrated portion of the tooth bar into engagement with the serrated pocket wall, said means comprising a lever and means for rotating it and holding it in position, and a wedge interposed between the bar and'the lever, said lever being slotted intermediate its ends to permit-the tooth bar to extend through it.

5. The combination with a supporting base member of a tooth bar having serrated sides and a tooth integral therewith, a pocket inside the base member partially containing the bar, and having a serrated wall and means for clamping the serrated portion of the tooth bar into engagement witlr the serrated pocket wall, said means comprising a lever and means for'rotating it and holding it in position, and a wedge interposed between the bar and the lever, said lever being slotted intermediate its ends to permit the tooth bar to extend through it, and

be. In any event, since they are removably means carried by the lever within said slot mounted, it 1s only necessary to loosen up .out permitting the tooth! bar to drop away from the serrated surface so that it can: easily be withdrawn. When the bar is replaced the process is reversed in the usual manner.

I claim: I

1. The combination with a supporting base member of a tooth bar having serrated sides and a tooth integral therewith, apocket inside the base member partially containing the bar, and having a serrated wall and means for clamping the serrated portion of the tooth bar into engagement with the serrated pocket wall. 7

2. The combination with a supporting base member of a tooth bar having serrated sides and a tooth integral therewith, a pocket inside the base member partially containing the bar, and having a serrated wall and means for clamping the serrated portion of the tooth bar into engagement wlth the serrated pocket wall, said means comprising for limiting the movement of the wedge toward the interior of the pocket.

6. The combination with a supporting base member .ofa tooth bar having serrated sides and a tooth integral therewith, a pocket inside the base member partially containing the bar, and having aserrated wall and means for clamping the serrated portion of the tooth bar into engagement with the serrated pocket wall, said .means comprising a lever and means for rotating it and 'holding it in position, and a wedge interposed between the bar and the lever, and means carried by the lever for limiting the movementof the wedge toward the interior of the pocket.

7. The combination with a supporting base member of a tooth barhaving serrated sides and a tooth integral therewith, a pocket inside the ,base member partially containing the bar, and having a serrated wall and means for clamping the serrated portion of the tooth bar into engagement with the serrated pocket wall, said means comprising a lever and means for rotating it and holding it in position, said pocket hav-' In testimony whereof, I aflix my signaing a curved wall, the lever having a curved ture in the presence of two witnesses this hearing end in engagement with said wall, 26th day of March, 1915.

a set screw projecting inwardly through the AXEL G. J. RAPP. wall of the pocket into engagement with the Witnesses: free end of the lever to rotate it upon its MINNIE M. LINDENAU,

curved bearing surface. Y BESSIE S. RICE. 

